Prolonged non-invasive blood pressure monitoring with the AKTIIA device in patients with type B Aortic dissection: a pilot study

BACKGROUND: The aim of this study was to evaluate the accuracy of non-invasive and prolonged blood pressure monitoring using the AKTIIA device, in patients with uncomplicated Stanford B Aortic dissection. Secondary objective was to obtain hemodynamic stabilization at a systolic pressure less than 130 mmHg, as recommended by guidelines.METHODS: The monitoring is based on the use of a bracelet CE-marking that analyzes the pulsation of the arteries under the surface of the skin. The accuracy of the values obtained was ascertained in intensive care by comparing them with the invasive pressure at the same time. The patients were subsequently re-evaluated 7-15-30-90 days after discharge in order to make the necessary changes to the antihypertensive therapy and verify their state of health.RESULTS: Ten patients aged between 40 and 65 years were enrolled. The blood pressure values measured with AKTIIA were consistent ±10 mmHg with respect to invasive values in 100% of cases. The target blood pressure values were reached in 100% of cases. During the follow-up period, no new hospitalizations occurred for hypertensive crisis or complications related to acute aortic syndrome. One patient with Marfan Syndrome was subsequently subjected to complex open aortic treatment. The remaining 9 patients are still undergoing periodic follow-up.CONCLUSIONS: The AKTIIA system has proven to be accurate in prolonged blood pressure monitoring of these patients. Following this initial positive experience, we will apply this monitoring more extensively and to more areas of Vascular Surgery.